CN110445990A - A kind of light compensating apparatus and camera system - Google Patents
A kind of light compensating apparatus and camera system Download PDFInfo
- Publication number
- CN110445990A CN110445990A CN201910746133.6A CN201910746133A CN110445990A CN 110445990 A CN110445990 A CN 110445990A CN 201910746133 A CN201910746133 A CN 201910746133A CN 110445990 A CN110445990 A CN 110445990A
- Authority
- CN
- China
- Prior art keywords
- light
- wave band
- threshold
- band
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Device Packages (AREA)
Abstract
The present invention provides a kind of light compensating apparatus and camera systems, light compensating apparatus includes the first light emitting structure, for in the case where the first light emitting structure is opened, issue the light of light filling wave band, wherein, light filling wave band belongs to the first range, wherein, human eye corresponding to wavelength in first range is less than or equal to first threshold with respect to visual acuity, and first threshold is less than 1；It further include first switch module, in the case where current ambient brightness is lower than preset first luminance threshold, the first light emitting structure of control to be opened.Through the invention, it is opened due to controlling the first light emitting structure by ambient brightness, and human eye corresponding to the light of light filling wave band is less than or equal to first threshold with respect to visual acuity, first threshold is less than 1, i.e. the light of light filling wave band is lower relative to the susceptibility of human eye, therefore, it can solve the problem of how carrying out light filling in low-light level environment, reach the technical effect that light-supplementing system discomfort caused by human body and the light pollution to environment is effectively reduced.
Description
Technical field
The present invention relates to optical fields, in particular to a kind of light compensating apparatus and camera system.
Background technique
In intelligent recognition field, realizing that evening images identification needs sufficiently strong light compensating lamp light intensity that can just obtain can be into
The image of row identification, will lead to the human comfort apart from the closer people of light compensating lamp in this way and is greatly lowered, and also will cause
Serious light pollution.
It is mainly short distance white light light filling+identification or remote infrared light filling (black and white) that night, which knows method for distinguishing, at present.
Low glare technology in the related technology mainly passes through the final progress light filling of luminous intensity out for reducing light filling, is such as homogenized out using frosted
Face light is penetrated, the method for increasing light-emitting area or reducing lamp power；But synchronous belt come disadvantage be central light strength reduction, irradiation away from
From reduction；Perhaps light filling intensity is reduced on picture pick-up device using the double sensor of camera lens or large aperture, improves image-forming module sheet
The photosensitive property of body, can thus reduce the requirement to light filling intensity, that is, reduce the light intensity of light compensating lamp, but the disadvantages of the method are as follows
Excessively high, image-forming module higher cost is required to imaging system；In addition, the program can there are also the scheme for using night infrared light filling
To reduce light pollution, but the problem is that lost the color information of image, i.e., cromogram can not be formed on picture pick-up device
Picture can be only formed the image of black and white, and the black white image can not above carry out color rendition in intelligent recognition application.
Summary of the invention
The embodiment of the invention provides a kind of light compensating apparatus and camera system, at least solve in the related technology how
The problem of light filling is carried out in low-light level environment.
According to one embodiment of present invention, a kind of light compensating apparatus is provided, can be used for providing light filling for filming apparatus,
Including the first light emitting structure, for issuing the light of light filling wave band, wherein institute in the case where first light emitting structure is opened
State light filling wave band and belong to the first range, wherein human eye corresponding to the wavelength in first range with respect to visual acuity be less than etc.
In first threshold, the first threshold is less than 1；First switch module, for being lower than preset first in current ambient brightness
In the case where luminance threshold, controls first light emitting structure and open.
Optionally, first light emitting structure includes:
First light source structure, the first light source structure are used to issue the light of the light filling wave band；Alternatively,
Second light source structure and optical filter, the second light source structure issue primary light, and the optical filter is to described original
Light is filtered to obtain the light of the light filling wave band.
Optionally, in the case where first light emitting structure includes the second light source structure and the optical filter, institute
It states optical filter and filters the primary light on transmission region and obtain the light of the light filling wave band, wherein the optical filter is described
The light transmittance of transmission region is more than or equal to 85%.
Optionally, the first switch module includes:
Photosensitive element is sent for acquiring current ambient brightness information, and by the collected ambient brightness information
To processor；
Processor, for carrying out pair the ambient brightness information received and preset first luminance threshold
Than whether being lower than preset first luminance threshold with the current ambient brightness of determination.
Optionally, the first switch module includes:
Switching circuit is higher than the feelings of preset first current value threshold for the current value in the switching circuit
Under condition, first light emitting structure is opened in control；
Light-sensitive element, for adjusting the current value in the switching circuit according to current ambient brightness, wherein current
Ambient brightness reduce in the case where, the current value in the switching circuit is increased by the light-sensitive element.
Optionally, the light compensating apparatus further includes the first light filling brightness adjusting section, in first light emitting structure
In the case where unlatching, the intensity of the light of the light filling wave band is adjusted according to current ambient brightness, so that the environment after light filling is bright
Degree reaches preset luminance index.
Optionally, in the light of the light filling wave band, the first human eye corresponding to first band is higher than with respect to visual acuity
In the case that the second human eye is with respect to visual acuity corresponding to second band, the light intensity of the light of the first band is less than described second
The light intensity of the light of wave band.
Optionally, in the case where the light compensating apparatus is used to be filming apparatus light filling, corresponding to the light filling wave band
The relative spectral response of the filming apparatus is more than or equal to second threshold, and the second threshold is greater than 0.
Optionally, in the case where the light compensating apparatus is used to be filming apparatus light filling, in the light of the light filling wave band,
First relative spectral response of the filming apparatus corresponding to first band is higher than the bat corresponding to second band
In the case where the second relative spectral response for taking the photograph device, the light intensity of the light of the first band is greater than the light of the second band
Light intensity.
Optionally, at least two wave bands of first light emitting structure in red spectral band, green light band and blue wave band
The upper light for issuing the light filling wave band.
Optionally, first light emitting structure is in 560~780nm wave band, 500~540nm wave band and 400~500nm wave
The light of the light filling wave band is issued at least two wave bands in section respectively.
Optionally, when the ambient brightness before light filling is more than preset second luminance threshold, first range are as follows: 400
~541nmU569~780nm；
When ambient brightness before light filling is lower than second luminance threshold, first range is 400~496nmU519
~1000nm.
According to another embodiment of the invention, a kind of camera system, including light filling described in any of the above embodiments are provided
Device further includes filming apparatus, for shooting in the case where the light compensating apparatus light filling.
Optionally, the filming apparatus further includes adjustment module, and the adjustment module is for adjusting the filming apparatus institute
Including sensitive chip relative spectral response so that the relative spectral of the filming apparatus corresponding to the light filling wave band
Responsiveness is more than or equal to second threshold, wherein the second threshold is greater than 0.
Through the embodiment of the present invention, it is opened due to controlling the first light emitting structure by ambient brightness, issues light filling wave band
Light, and human eye corresponding to the light filling wave band is less than or equal to first threshold with respect to visual acuity, and the first threshold is less than 1, i.e.,
The light of light filling wave band is lower relative to the susceptibility of human eye, therefore, can solve and how to carry out light filling in low-light level environment
Problem reaches the technical effect that light-supplementing system discomfort caused by human body and the light pollution to environment is effectively reduced.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of light compensating apparatus according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of camera system according to an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the image pickup method of alternative embodiment according to the present invention；
Fig. 4 is the flow chart of the image pickup method of another alternative embodiment according to the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
A kind of light compensating apparatus is present embodiments provided, filming apparatus or photographed scene light filling are used to.Fig. 1 is root
According to the structural block diagram of the light compensating apparatus of the embodiment of the present invention, as shown in Figure 1, light compensating apparatus 11 includes:
First light emitting structure 12, for issuing the light of light filling wave band in the case where the first light emitting structure is opened, wherein
Light filling wave band belongs to the first range, wherein human eye corresponding to the wavelength in the first range is less than or equal to first with respect to visual acuity
Threshold value, first threshold is less than 1；First switch module 13, for being lower than preset first luminance threshold in current ambient brightness
In the case where, the first light emitting structure of control is opened.
Through the embodiment of the present invention, it is opened due to controlling the first light emitting structure by ambient brightness, issues light filling wave band
Light, and human eye corresponding to the light filling wave band is less than or equal to first threshold with respect to visual acuity, and first threshold is less than 1, i.e. light filling
The light of wave band is lower relative to the susceptibility of human eye, therefore, can solve the problem of how light filling being carried out in low-light level environment,
Reach the technical effect that light-supplementing system discomfort caused by human body and the light pollution to environment is effectively reduced.
It should be noted that human eye it can be seen that spectrum be visible light, the optic nerve of human eye is to various differences
The luminous sensitivity of wavelength light is different.The opposite visual acuity of human eye vision can be used to evaluate human eye to different wave length
The luminous sensitivity of light, the human eye the high with respect to visual acuity, indicates that human eye is more sensitive to the light of the wavelength, human eye is with respect to visual acuity
It is more low, indicate that human eye is more insensitive to the light of the wavelength.The value of the opposite visual acuity of human eye vision can be 0 to 1, work as number
When value is 1, indicate that human eye is most sensitive to the light of the wavelength.The human eye as corresponding to the wave band of light filling with respect to visual acuity be less than etc.
In first threshold, first threshold is less than 1, such as can be any one numerical value less than 1, such as 0.9,0.8,0.7 ...
0.2, any one numerical value less than 1 such as 0.1 can effectively mitigate light filling to human eye so avoiding the more sensitive light of human eye
Stimulation.
The present embodiment also means that the present embodiment is limited using the opposite visual acuity of human eye as the reference index of light filling
The visible light mainly in light filling, the light filling in the present embodiment can be visible light, and carrying out light filling using visible light facilitates
The color rendition of image.
In addition, it is necessary to illustrate, " wave band " word in the present embodiment can be broadly understood, and can be indicated several
The combination of continuous spectral region, can also indicate the combination of several wavelength values, can also indicate several continuous spectral regions
With the combination of several wavelength values；Such as the light filling of the present embodiment can be by three kinds of light groups of wavelength 450nm, 520nm and 630nm
At, it can it is made of a variety of monochromatic light or light filling can be by 450~500nm wave band, 520nm wavelength and 630nm wavelength
Light composition or light filling can be mixed by the light of two wave bands of 520~530nm and 630~650nm to be formed, and is repeated no more below.
In one embodiment, the first light emitting structure includes: first light source structure, and first light source structure is mended for issuing
The light of optical band；Alternatively, second light source structure and optical filter, second light source structure issues primary light, optical filter to primary light into
The light of light filling wave band is obtained by filtration in row.
It should be noted that the first, second above-mentioned light-source structure can be the various people such as LED luminescence chip, flash lamp
Make light source.
In one embodiment, it in the case where the first light emitting structure includes second light source structure and optical filter, filters
Piece filters primary light on transmission region and obtains the light of light filling wave band, wherein optical filter transmission region light transmittance be greater than etc.
In 85%.
For example, it may be to the light transmittance 85%, 90%, 95% or 100% of transmission region, it can to the light of its all band
To be not through.
In one embodiment, first switch module includes:
Photosensitive element is sent to place for acquiring current ambient brightness information, and by collected ambient brightness information
Manage device；
Processor, the ambient brightness information for will receive is compared with preset first luminance threshold, with determination
Whether current ambient brightness is lower than preset first luminance threshold.
In one embodiment, first switch module includes: switching circuit, high for the current value in switching circuit
In the case where preset first current value threshold, the first light emitting structure is opened in control；
Light-sensitive element, for according to the current value in current ambient brightness adjustment switching circuit, wherein in current ring
In the case that border brightness reduces, the current value in switching circuit is increased by light-sensitive element.
It should be noted that first switch module can be turned on or off light filling according to current ambient brightness.It needs
Illustrating, first switch module can be the control circuit comprising light-sensitive element, when light-sensitive element receives environment light, root
Corresponding physical change is made according to the intensity of environment light, is shone so that control circuit opens the first light emitting structure or closes first
Structure.It is also possible to the program module controlled by computer program, such as may include memory and processor, storage
Program is stored in device, which can execute following steps at runtime: by the preview image luminance information of filming apparatus with
Preset luminance threshold is compared, and when preview image brightness is lower than preset threshold, judges to open the first light emitting structure, when pre-
When brightness of image of looking at is higher than preset threshold, judgement is not turned on the first light emitting structure or closes the first light emitting structure.Preview image
Brightness is sufficiently high, indicates that ambient brightness is shot enough, it may not be necessary to light filling.
In one embodiment, light compensating apparatus further includes the first light filling brightness adjusting section, in the first light-emitting junction
In the case that structure is opened, according to the intensity of the light of current ambient brightness adjustment light filling wave band, so that the ambient brightness after light filling
Reach preset luminance index.
It should be noted that the first light filling brightness adjusting section can be the control circuit comprising light-sensitive element, when photosensitive
When element receives environment light, corresponding physical change is made according to the intensity of environment light, so that control circuit adjusts light filling wave
The intensity of the light of section, such as the intensity of light filling can be changed by adjusting the size of electric current.It is also possible to pass through computer
The program module that program is controlled, such as may include memory and processor, it is stored with program in memory, which exists
Following steps can be executed when operation: the preview image brightness of filming apparatus being compared with preset luminance threshold, when pre-
When brightness of image of looking at is lower than preset threshold, judge to increase light filling intensity, when preview image brightness is higher than preset threshold, judges to drop
The intensity of low light filling.
In one embodiment, in the light of light filling wave band, the opposite view of the first human eye corresponding to first band is quick
In the case that degree is higher than the second human eye corresponding to second band with respect to visual acuity, the light intensity of the light of first band is less than the second wave
The light intensity of the light of section.
In one embodiment, in the case where light compensating apparatus is used to be filming apparatus light filling, corresponding to light filling wave band
Filming apparatus relative spectral response be more than or equal to second threshold, second threshold be greater than 0.
In one embodiment, in the case where light compensating apparatus is used to be filming apparatus light filling, in the light of light filling wave band
In, the first relative spectral response of the filming apparatus corresponding to first band is higher than filming apparatus corresponding to second band
The second relative spectral response in the case where, the light intensity of the light of first band is greater than the light intensity of the light of second band.
It should be noted that the relative spectral response (relative response) of filming apparatus can be used to indicate
Filming apparatus then means filming apparatus to the susceptibility of the light of different wave length, the light of the higher wavelength of relative spectral response
It is higher for the photoelectric conversion efficiency of the light of the wavelength, so, the relative spectral response of filming apparatus corresponding to light filling wave band
The higher the better for degree.The value of relative spectral response can be 0 to 1.The relative spectral of filming apparatus corresponding to light filling wave band
Responsiveness needs to be higher than certain threshold value, that is, is higher than second threshold, helps to improve light filling efficiency.Second threshold can be 0.1
Arbitrary value between to 1.
It should be noted that the more high then filming apparatus of the relative spectral response as corresponding to the light of light filling wave band is to benefit
The transfer efficiency of light is higher, and human eye is lower with respect to visual acuity, then human eye is more insensitive.So can be improved opposite in light filling
Spectral responsivity is higher and human eye with respect to the lower wave band of visual acuity light intensity or as far as possible using relative spectral response compared with
High and human eye, as light filling, further decreases the stimulation to human eye, improves light filling efficiency with respect to the lower wave band of visual acuity.
In one embodiment, the first light emitting structure in red spectral band, green light band and blue wave band at least two
Light filling is issued on a wave band.Carrying out light filling using two primitive color lights or primaries facilitates the color rendition of shooting image.
In one embodiment, the first light emitting structure 560~780nm wave band, 500~540nm wave band and 400~
The light of light filling wave band is issued at least two wave bands in 500nm wave band respectively
In one embodiment, when the ambient brightness before light filling is more than preset second luminance threshold, the first range
Are as follows: 400~541nmU569~780nm；When ambient brightness before light filling is lower than the second luminance threshold, the first range is 400~
496nmU519~1000nm.
It should be noted that human eye has photopic vision and noctovision, two kinds of visions are different to the visual acuity of visible light.And
Photopic vision and noctovision are divided mainly according to ambient brightness, when ambient brightness is higher, the vision of human eye belongs to photopic vision, when
When ambient brightness is lower, the vision of human eye belongs to noctovision.Human eye photopic vision has also been carried out to the light of light filling wave band in the present embodiment
The differentiation with noctovision is felt, preferably to avoid human body uncomfortable.
It should be noted that light filling wave band within 400~541nmU569~780nm, can refer to that the wave band of light filling is this
Any section in wavelength band, such as 400nm, 401nm, 402nm, 403nm ... 540nm, 541nm and 569nm,
The section between any two value in 570nm, 571nm, 572nm ... 778nm, 779nm, 780nm；It also may include the range
Any one interior wavelength point value, is also possible to any section in the union and the combination of any wavelength value, does not arrange one by one herein
It lifts；Similarly, light filling wave band can also refer to that the wave band of light filling is the wavelength band within 400~496nmU519~1000nm
The combination in interior any section or any wavelength value or any section and any wavelength value.
The present embodiment additionally provides a kind of camera system, and Fig. 2 is the structural frames of camera system according to an embodiment of the present invention
Figure, as shown in Fig. 2, the camera system 21 includes the light compensating apparatus 22 of any of the above-described；It further include filming apparatus 23, for mending
Electro-optical device is shot in the case where providing light filling.
Through the embodiment of the present invention, it is opened due to controlling the first light emitting structure by ambient brightness, issues light filling wave band
Light, and human eye corresponding to the light filling wave band is less than or equal to first threshold with respect to visual acuity, and first threshold is less than 1, i.e. light filling
The light of wave band is lower relative to the susceptibility of human eye, therefore, can solve the problem of how light filling being carried out in low-light level environment,
Reach the technical effect that light-supplementing system discomfort caused by human body and the light pollution to environment is effectively reduced.
It should be noted that the camera system in the present embodiment can be understood as being integrated with light compensating apparatus (such as light compensating lamp)
Capture apparatus, it is understood that for the shooting combination product of light compensating apparatus and capture apparatus that can be sold in set.
In one embodiment, filming apparatus further includes blank level adjustment module, for being adjusted according to the light of light filling wave band
White balance.
In one embodiment, filming apparatus further includes adjustment module, and adjustment module is for adjusting included by filming apparatus
Sensitive chip relative spectral response so that the relative spectral response of filming apparatus corresponding to light filling wave band be greater than etc.
In second threshold, wherein second threshold is greater than 0.
The relative spectral response of sensitive chip included by the adjustable filming apparatus of module is adjusted, such as by photosensitive
The relative spectral response of the spectrum design of chip surface array lenticule and processing adjustment sensitive chip, so that light compensating apparatus institute
The relative spectral response of filming apparatus corresponding to the wave band of the light filling of sending is more than or equal to second threshold, wherein the second threshold
Value is greater than 0.
Since in some cases, stimulating lower wave band to human eye is not the higher wave of capture apparatus spectral responsivity
Section, it is possible to relative spectral response of the capture apparatus on the light filling wave band is adjusted, to improve the photoelectric conversion effect of light filling
Rate preferably acquires under lighting condition, goes back original image.Ibid, the relative spectral response (relative of filming apparatus
Response) can be used to indicate filming apparatus to the susceptibility of the light of different wave length, the higher wavelength of relative spectral response
Light, then mean filming apparatus for the wavelength light photoelectric conversion efficiency it is higher, so, corresponding to the wave band of light filling
The higher the better for the relative spectral response of filming apparatus.The value of relative spectral response can be 0 to 1.Corresponding to light filling
The relative spectral response of filming apparatus needs to be higher than certain threshold value, that is, is higher than second threshold, helps to improve light filling efficiency.
Second threshold can be the arbitrary value between 0.1 to 1.
It opens or closes the module of control it should be noted that carrying out light filling and intensity adjustment is carried out to the light of light filling wave band
Module can be set on individual light compensating apparatus, also can be set on filming apparatus, the present invention does not limit these
The position that module is specifically arranged, as long as can be realized above-mentioned purpose.
Explanation is further expalined to the embodiment of the present invention below in conjunction with concrete scene:
The embodiment of the present invention can be realized not to be promoted substantially in whole system cost, i.e., the premise of common imaging system
Under, guarantee the irradiation distance of light filling, while realizing color rendition, be effectively reduced light-supplementing system discomfort degree caused by human body and
To the light pollution of environment.
In one embodiment, can according to human eye from the sensitive chip in capture apparatus to the sensitive journey of different spectrum
Degree carries out light filling, for example, selecting human eye sensitivity lower but the higher visible spectrum of sensitive chip susceptibility at night
Interior spectrum carries out the design of light filling and light-supplementing system, while white being put down by what ISP system debug correspond under light-supplementing system is opened
Balance system guarantees the color reduction of optical imagery scheme.Light-supplementing system is selected to open by photosensitive sensor or power on signal
Be not turned under white balance system.Under night on daytime full-color scheme, guarantee camera review brightness, light dirt is effectively reduced
Dye reduces light compensating lamp to the stimulation degree of human eye, while improving sensitive chip to the utilization rate of light compensating lamp.
In one embodiment, the light compensating lamp brightness that comparison is suitble to scene instantly can be found by software control, it is real
Existing intelligent control white light intensity, reduces white light bring light pollution to the maximum extent.Such as there are also one to light in environment light
When, light compensating lamp is only illuminated to enough luminous intensities, and as environmental light brightness reduces, the luminous intensity of light compensating lamp can be adjusted gradually
Greatly.
In addition, light compensating lamp opens the image white balance program of needs when carrying out light filling and does not open light compensating lamp (ambient brightness
Enough such as daytimes) when white balance be different, so software can also select correspondence according to whether light compensating lamp is opened
White balance.
In one embodiment, light filling can be obtained using hardware, for example, luminescence chip combination or light emitting source and
Optical filter.It should be strongly noted that the present embodiment, which mainly passes through, chooses camera image sensor sensor (cmos/
CCD) sensitive partial spectrum, and the spectrum of human eye sensitivity (dazzling) is filtered out, it chooses this part and gives video camera light filling, thus
Realize that light pollution is low but the higher effect of picture brightness.Optical electivity can be there are two types of situation, can be according to industry volume production
Camera sensor sensor (at present and the spectrum of human eye stimulation has some overlappings) is selected, can also be camera sensor
The photoinduction characteristic of device sensor is adjusted, and widens difference with the part of human eye sensitivity as far as possible, is conducive to choose people in this way
The insensitive and sensitive sensitive chip spectrum of eye.
It can realize that color really restores night light filling simultaneously by flow chart 3 or flow chart 4, while realize light source light
Strong intelligence is adjustable.Such as the intensity of control light filling can be realized by the controller on capture apparatus, specifically, can use
The correspondence computer program stored in sensor, interlock circuit and processor and memory is realized, wherein sensor can be felt
Know the brightness of environment, circuit can adjust the brightness of light compensating lamp by electric signal.Such as control flow shown in Fig. 3:
Ambient light intensity (ambient brightness) can be perceived by sensor, so as to adjust the intensity of light filling.Such as in Fig. 3
In, ambient light intensity is received by sensor (such as light-sensitive device), then judges whether environmental light brightness at this time is enough, when
Environmental light brightness is enough, when can reach photographing request, there is no need to open light compensating lamp, when environmental light brightness is inadequate, opens
Light supplementation lamp module and it is changed to light compensating lamp mode white balance, then gradually increasing light filling lamp current, (i.e. raising light compensating lamp is bright
Degree), then judge whether current environmental light brightness is enough by sensor (photosensitive) again, continues to increase light compensating lamp if not enough
Electric current improves the brightness of light compensating lamp, when environmental light brightness is enough, no longer adjusts light filling lamp current.
Furthermore it is also possible to open the preset condition of light compensating lamp by judging whether capture apparatus picture brightness meets and carry out
Light filling, such as process shown in Fig. 4, when shooting picture brightness is enough, there is no need to open light compensating lamp, when shooting picture brightness
Not enough, when cannot obtain the image that can be identified of real colour reduction, it is necessary to open light compensating lamp.When picture brightness meets in advance
If when condition, then opening supplementary lighting module and being changed to light compensating lamp mode white balance, then gradually increases light filling lamp current and (improve
The brightness of light compensating lamp), then judge whether current picture brightness is enough by software again, continues to increase light compensating lamp if not enough
Electric current improves the brightness of light compensating lamp, when picture brightness is enough, no longer adjusts light filling lamp current.
It in one embodiment, can quantity and each chip by the combination of luminescence chip, to luminescence chip
Intensity adjustment, debug out the light in the partially visible wave-length coverage of sensitivity insensitive for human eye but photosensitive for sensor
Spectrum.Light-supplementing system is corresponded to for the visible light elected, white balance is adjusted, restores color.
In one embodiment, after the visible light supplementary lighting sources of the special spectrum needed, for this part light
Spectrum, is designed like optical element, the i.e. optical filter of camera chain or camera lens, so that the optical filter that night uses is for using
Supplementary lighting sources correspond to spectrum high transmittance, such as can be 85% or more.
In one embodiment, luminescence chip is separately combined using RGB, by the way of the combination of multiple optical chip, is adjusted
The whole spectrum for obtain that final human eye sensitivity is low, chip susceptibility is high.Blue light, green light, feux rouges respectively can be according to photosensitive spies
Property is combined, and can be 1:2:6.Wherein, finally obtained light intensity matches feux rouges > green light > blue light.Sensor light sensitive characteristic
The light filling scheme not customized is the luminescence peak of luminescence chip using 450nm (B), 520nm (G), 630nm (R), wherein range
It can decontrol to 450nm ± 50,500~541nm, 569~780nm.
Meanwhile corresponding camera lens night optical filter needs to be made into corresponding visible light wave band height thoroughly, may be greater than
In 85%, it is high thoroughly to guarantee the corresponding spectrum of light filling lamp source, while filtering infrared part.The eyeglass for the camera lens that Corresponding matching uses is saturating
The high transmission filter control that rate optionally does corresponding wave band is crossed, optical filter and camera lens also can choose the conventional universal product, do not do
Cross rate specially treated.
Meanwhile it is alternatively possible to sensor (sensitive chip) induction spectrum is done into corresponding adjustment, if sensitive chip is filtered
Mating plate adjustment, the corresponding spectral region low to visual sensitivity, such as selected in 400~541nm and the section 569~780nm
Sensitive chip transmitance peak value is selected, corresponding light-supplementing system optical filter is also adjusted to above-mentioned wave band, that is, chooses adjustment induction spectrum
Select spectrum for the transmitance wave crest spectrum of lamp source optical filter in the section ± 10nm of sensor response curve wave crest afterwards.
The present embodiment can reduce the stimulation journey to human eye under the premise of guaranteeing radiation intensity and video camera shooting distance
Degree；And human eye low sensitivity sensitive chip high sensitive visible-range spectrum can be screened according to human eye vision, realized complete
It is color.
The present embodiment controls the tune of number of chips and each chip light emitting intensity by different spectral luminescence chip portfolios
Examination, debugs out that human eye is insensitive but the light source of the spectrum of camera sensor sensitivity, it is desirable that comprising three-color light source, wherein R > G > B.
The present embodiment is directed to the spectrum filtered out and does corresponding white balance；Alleviated by light source light spectrum selection dirty to environment light
The method of dye.
The present embodiment carries out strong and weak control to low pollution white light lamp current intensity and realizes that the strong and weak of light intensity changes；Such as it can be with
The strong and weak adjustment of light filling is carried out according to the picture brightness of ambient brightness or image.
The present embodiment can not adjust sensitive chip photobehavior, be filtered using optical filter to light source, to issue most
The light filling of good spectral region；Or directly enable the light filling of lamp source sending optimal spectrum range.Required for being filtered out using optical filter
Light filling spectrum when, low control can be carried out to human eye high sensitivity 541nm~569nm, or select wave band within this range
It is controlled.For example, it can be set to the wave band low transmission, such as control is within 50%；400 except above-mentioned section simultaneously
The wave band of~541nm and 569~780nm can be set to height thoroughly, or optional any section spectrum is set as big in the range
In the transmitance for being equal to 85%.Corresponding light filling wave crest or transmitance wave crest can be selected in above-mentioned section, need to be deposited
In 2 or more wave crests, can be such collocation: 450nm, 520nm and 630nm, wave crest can in 400-541nm and
Selection in two interval ranges of 569-780nm.
Spectrum is optional is adjusted or deviates for sensor (sensitive chip) induction in the present embodiment, such as photosensitive best model
It encloses and selects to be 400~520nm and 590~700nm, select the insensitive region of human eye, corresponding luminescence chip is adjusted to
State with the consistent wave band of sensitive chip, avoid the most sensitive 541-569nm of human eye.
The adjustable method of scheme combination light intensity of the present embodiment, so that the reduction to ambient light contamination is carried out from two dimensions
Optimization.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of light compensating apparatus, which is characterized in that the light compensating apparatus includes:
First light emitting structure, for issuing the light of light filling wave band, wherein institute in the case where first light emitting structure is opened
State light filling wave band and belong to the first range, wherein human eye corresponding to the wavelength in first range with respect to visual acuity be less than etc.
In first threshold, the first threshold is less than 1；
First switch module, in the case where current ambient brightness is lower than preset first luminance threshold, described in control
First light emitting structure is opened.
2. light compensating apparatus according to claim 1, which is characterized in that first light emitting structure includes:
First light source structure, the first light source structure are used to issue the light of the light filling wave band；Alternatively,
Second light source structure and optical filter, the second light source structure issue primary light, the optical filter to the primary light into
The light of the light filling wave band is obtained by filtration in row.
3. light compensating apparatus according to claim 2, which is characterized in that in first light emitting structure include second light
In the case where source structure and the optical filter, the optical filter filters the primary light on transmission region and obtains the light filling wave
The light of section, wherein the optical filter is more than or equal to 85% in the light transmittance of the transmission region.
4. light compensating apparatus according to claim 1, which is characterized in that the first switch module includes:
Photosensitive element is sent to place for acquiring current ambient brightness information, and by the collected ambient brightness information
Manage device；
Processor, for the ambient brightness information received and preset first luminance threshold to be compared, with
Determine whether current ambient brightness is lower than preset first luminance threshold.
5. light compensating apparatus according to claim 1, which is characterized in that the first switch module includes:
Switching circuit, for the current value in the switching circuit be higher than preset first current value threshold the case where
Under, first light emitting structure is opened in control；
Light-sensitive element, for adjusting the current value in the switching circuit according to current ambient brightness, wherein in current ring
In the case that border brightness reduces, the current value in the switching circuit is increased by the light-sensitive element.
6. light compensating apparatus according to claim 1, which is characterized in that the light compensating apparatus further includes the first light filling brightness tune
Mould preparation block, for adjusting the light filling wave band according to current ambient brightness in the case where first light emitting structure is opened
Light intensity so that the ambient brightness after light filling reaches preset luminance index.
7. light compensating apparatus according to claim 1, which is characterized in that in the light of the light filling wave band, in first band
It is described in the case that the first corresponding human eye is higher than the opposite visual acuity of the second human eye corresponding to second band with respect to visual acuity
The light intensity of the light of first band is less than the light intensity of the light of the second band.
8. light compensating apparatus according to claim 1, which is characterized in that be used to be filming apparatus light filling in the light compensating apparatus
In the case where, the relative spectral response of the filming apparatus corresponding to the light filling wave band is more than or equal to second threshold, institute
Second threshold is stated greater than 0.
9. light compensating apparatus according to claim 1, which is characterized in that be used to be filming apparatus light filling in the light compensating apparatus
In the case where, in the light of the light filling wave band, the first relative spectral of the filming apparatus corresponding to first band is rung
In the case that response is higher than the second relative spectral response of the filming apparatus corresponding to second band, the first band
Light light intensity be greater than the second band light light intensity.
10. light compensating apparatus according to claim 1, which is characterized in that first light emitting structure is in red spectral band, green light
The light of the light filling wave band is issued at least two wave bands in wave band and blue wave band.
11. light compensating apparatus according to claim 1, which is characterized in that first light emitting structure is in 560~780nm wave
The light of the light filling wave band is issued at least two wave bands in section, 500~540nm wave band and 400~500nm wave band respectively.
12. light compensating apparatus according to claim 1, which is characterized in that ambient brightness before light filling is more than preset the
When two luminance thresholds, first range are as follows: 400~541nmU569~780nm；
When ambient brightness before light filling is lower than second luminance threshold, first range be 400~496nmU519~
1000nm。
13. a kind of camera system, which is characterized in that including the described in any item light compensating apparatus of such as claim 1 to 12；
It further include filming apparatus, for being shot in the case where the light compensating apparatus light filling.
14. camera system according to claim 13, which is characterized in that the filming apparatus further includes adjustment module, institute
The relative spectral response that adjustment module is used to adjust sensitive chip included by the filming apparatus is stated, so that the light filling wave
The relative spectral response of the filming apparatus corresponding to section is more than or equal to second threshold, wherein the second threshold is greater than
0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746133.6A CN110445990B (en) | 2019-08-13 | 2019-08-13 | Light filling device and shooting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746133.6A CN110445990B (en) | 2019-08-13 | 2019-08-13 | Light filling device and shooting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110445990A true CN110445990A (en) | 2019-11-12 |
| CN110445990B CN110445990B (en) | 2022-06-21 |
Family
ID=68435190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910746133.6A Active CN110445990B (en) | 2019-08-13 | 2019-08-13 | Light filling device and shooting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110445990B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114126136A (en) * | 2020-08-28 | 2022-03-01 | 浙江宇视科技有限公司 | Intelligent light supplementing method, device, medium and system |
| WO2022052365A1 (en) * | 2020-09-10 | 2022-03-17 | 华为技术有限公司 | Image collection system and method, device and storage medium |
| CN115412677A (en) * | 2021-05-27 | 2022-11-29 | 上海三思电子工程有限公司 | Lamp spectrum determining and acquiring method, lamp, related equipment, system and medium |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050117190A1 (en) * | 2002-03-01 | 2005-06-02 | Kenichi Iwauchi | Light emitting device and display unit using the light emitting device and reading device |
| EP1561640A2 (en) * | 2004-02-06 | 2005-08-10 | Goodrich Hella Aerospace Lighting Systems GmbH | Colored light for the passengers of a publc transport means, in particular for an aeroplane cabin |
| CN101150735A (en) * | 2006-09-19 | 2008-03-26 | 三星电子株式会社 | Image photographing apparatus, method and medium |
| CN101493532A (en) * | 2008-01-24 | 2009-07-29 | Tcl集团股份有限公司 | Display device |
| TWM364167U (en) * | 2009-04-29 | 2009-09-01 | Terrabrite Inc | Eye protection table lamp |
| US20100123401A1 (en) * | 2008-11-19 | 2010-05-20 | Park Young-Min | Method of Driving A Light Source, Light Source Apparatus for Performing the Method and Display Apparatus Having the Light Source Apparatus |
| US20110043503A1 (en) * | 2008-01-22 | 2011-02-24 | Benjamin James Hadwen | Spectrally compensating a light sensor |
| US20110193968A1 (en) * | 2008-10-30 | 2011-08-11 | Siliconfile Technologies Inc. | Image sensor capable of realizing night-photographing and functions of proximity sensor and illuminance sensor |
| US20120219306A1 (en) * | 2011-02-28 | 2012-08-30 | Canon Kabushiki Kaisha | Image forming apparatus that detects transition between patch images |
| CN103645594A (en) * | 2013-08-01 | 2014-03-19 | 广东本致数码科技有限公司 | Multispectral infrared surveillance camera supplementary lighting method |
| CN103645595A (en) * | 2013-11-05 | 2014-03-19 | 广东明创软件科技有限公司 | Method for shooting light supplement based on mobile terminal and mobile terminal thereof |
| US20150319823A1 (en) * | 2014-05-01 | 2015-11-05 | Jonathan Stephen Farringdon | Device for forming a light source |
| CN204806074U (en) * | 2015-01-22 | 2015-11-25 | 苏州镭旭光电科技有限公司 | Plant light filling lamp |
| WO2016096387A1 (en) * | 2014-12-16 | 2016-06-23 | Philips Lighting Holding B.V. | Working light, lighting system and use thereof |
| US20160195227A1 (en) * | 2013-09-03 | 2016-07-07 | Gemex Consultancy B.V. | Spectrally enhanced white light for better visual acuity |
| CN205812180U (en) * | 2016-06-25 | 2016-12-14 | 维沃移动通信有限公司 | The light filling structure of a kind of mobile terminal and mobile terminal |
| US20170045201A1 (en) * | 2013-12-10 | 2017-02-16 | Gary W. Jones | Inverse visible spectrum light and broad spectrum light source for enhanced vision |
| CN106449617A (en) * | 2015-08-05 | 2017-02-22 | 杭州海康威视数字技术股份有限公司 | Light source device used for generating light, light supplement method thereof, and light supplement device thereof |
| TW201743166A (en) * | 2016-05-24 | 2017-12-16 | 鴻海精密工業股份有限公司 | System and method for eyes-protection |
| US20180078151A1 (en) * | 2016-09-22 | 2018-03-22 | Apple Inc. | Systems and methods for determining physiological signals using ambient light |
| CN109027720A (en) * | 2018-06-27 | 2018-12-18 | 朗昭创新控股（深圳）有限公司 | A kind of optimization method of LED light source |
| CN208691388U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources and light supplementing device of camera and video camera with it |
| CN208691390U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
| US10955109B1 (en) * | 2010-07-07 | 2021-03-23 | Courtney Joseph Monzyk | Portable lighting device |
-
2019
- 2019-08-13 CN CN201910746133.6A patent/CN110445990B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050117190A1 (en) * | 2002-03-01 | 2005-06-02 | Kenichi Iwauchi | Light emitting device and display unit using the light emitting device and reading device |
| EP1561640A2 (en) * | 2004-02-06 | 2005-08-10 | Goodrich Hella Aerospace Lighting Systems GmbH | Colored light for the passengers of a publc transport means, in particular for an aeroplane cabin |
| CN101150735A (en) * | 2006-09-19 | 2008-03-26 | 三星电子株式会社 | Image photographing apparatus, method and medium |
| US20110043503A1 (en) * | 2008-01-22 | 2011-02-24 | Benjamin James Hadwen | Spectrally compensating a light sensor |
| CN101493532A (en) * | 2008-01-24 | 2009-07-29 | Tcl集团股份有限公司 | Display device |
| US20110193968A1 (en) * | 2008-10-30 | 2011-08-11 | Siliconfile Technologies Inc. | Image sensor capable of realizing night-photographing and functions of proximity sensor and illuminance sensor |
| US20100123401A1 (en) * | 2008-11-19 | 2010-05-20 | Park Young-Min | Method of Driving A Light Source, Light Source Apparatus for Performing the Method and Display Apparatus Having the Light Source Apparatus |
| TWM364167U (en) * | 2009-04-29 | 2009-09-01 | Terrabrite Inc | Eye protection table lamp |
| US10955109B1 (en) * | 2010-07-07 | 2021-03-23 | Courtney Joseph Monzyk | Portable lighting device |
| US20120219306A1 (en) * | 2011-02-28 | 2012-08-30 | Canon Kabushiki Kaisha | Image forming apparatus that detects transition between patch images |
| CN103645594A (en) * | 2013-08-01 | 2014-03-19 | 广东本致数码科技有限公司 | Multispectral infrared surveillance camera supplementary lighting method |
| US20160195227A1 (en) * | 2013-09-03 | 2016-07-07 | Gemex Consultancy B.V. | Spectrally enhanced white light for better visual acuity |
| CN103645595A (en) * | 2013-11-05 | 2014-03-19 | 广东明创软件科技有限公司 | Method for shooting light supplement based on mobile terminal and mobile terminal thereof |
| US20170045201A1 (en) * | 2013-12-10 | 2017-02-16 | Gary W. Jones | Inverse visible spectrum light and broad spectrum light source for enhanced vision |
| US20150319823A1 (en) * | 2014-05-01 | 2015-11-05 | Jonathan Stephen Farringdon | Device for forming a light source |
| WO2016096387A1 (en) * | 2014-12-16 | 2016-06-23 | Philips Lighting Holding B.V. | Working light, lighting system and use thereof |
| CN204806074U (en) * | 2015-01-22 | 2015-11-25 | 苏州镭旭光电科技有限公司 | Plant light filling lamp |
| CN106449617A (en) * | 2015-08-05 | 2017-02-22 | 杭州海康威视数字技术股份有限公司 | Light source device used for generating light, light supplement method thereof, and light supplement device thereof |
| TW201743166A (en) * | 2016-05-24 | 2017-12-16 | 鴻海精密工業股份有限公司 | System and method for eyes-protection |
| CN205812180U (en) * | 2016-06-25 | 2016-12-14 | 维沃移动通信有限公司 | The light filling structure of a kind of mobile terminal and mobile terminal |
| US20180078151A1 (en) * | 2016-09-22 | 2018-03-22 | Apple Inc. | Systems and methods for determining physiological signals using ambient light |
| CN109027720A (en) * | 2018-06-27 | 2018-12-18 | 朗昭创新控股（深圳）有限公司 | A kind of optimization method of LED light source |
| CN208691388U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources and light supplementing device of camera and video camera with it |
| CN208691390U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114126136A (en) * | 2020-08-28 | 2022-03-01 | 浙江宇视科技有限公司 | Intelligent light supplementing method, device, medium and system |
| WO2022052365A1 (en) * | 2020-09-10 | 2022-03-17 | 华为技术有限公司 | Image collection system and method, device and storage medium |
| CN115412677A (en) * | 2021-05-27 | 2022-11-29 | 上海三思电子工程有限公司 | Lamp spectrum determining and acquiring method, lamp, related equipment, system and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110445990B (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202887451U (en) | Infrared light and visible light filling blended electronic police system | |
| US7920205B2 (en) | Image capturing apparatus with flash device having an LED array | |
| CN104394306B (en) | Camera module and equipment for the multichannel multizone plated film of iris recognition | |
| CN110445990A (en) | A kind of light compensating apparatus and camera system | |
| CN105391953B (en) | Image pickup method and filming apparatus | |
| CN103220534B (en) | Image capturing device and method | |
| CN101309428B (en) | Image input processing device and method | |
| CN207530934U (en) | A kind of dual camera module with infrared imaging function | |
| CN101872106B (en) | Intelligent infrared camera and intelligent infrared light intensity adjustment method thereof | |
| CN101150732B (en) | Imaging method and device for color image shot by black and white camera | |
| CN106961557A (en) | Light-field camera and its image treatment method | |
| CN106254785A (en) | Imageing sensor and the method being used for improving non-visible illumination | |
| CN103686100A (en) | Mobile communication apparatus and flashlight controlling method | |
| CN107820066A (en) | A kind of low-luminance color video camera | |
| CN110490042A (en) | Face identification device and access control equipment | |
| CN110493535A (en) | The method of image collecting device and Image Acquisition | |
| CN109729253A (en) | A kind of algorithm and four color cameras based on the overlapping enhancing of colored and independent RGB optical imagery | |
| CN101610355B (en) | Day and night camera | |
| CN201467300U (en) | Day and night dual-purpose camera, light filter and optical system thereof | |
| CN105678228B (en) | Iris recognition optical imagery module and application method for safety identification authentication | |
| CN107420826A (en) | A kind of illuminator with monitoring alarm function | |
| CN108391356A (en) | A kind of Intelligent House Light control system | |
| CN209170523U (en) | A kind of four color cameras | |
| CN208691387U (en) | A kind of full-color web camera | |
| CN110728184A (en) | Multi-light-source iris image acquisition device capable of eliminating light and shadow in imaging area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |